In the 2018 Black Panther movie, after Eric Killmonger
Overthrows and presumably kills T'Challa, he takes the throne and is the new king of Wakanda.
After that, his plan (heavily simplified) was to supply vibranium-made arms and ammunition to the militia across the world. At this time W'Kabi tells Killmonger that:
The forces in New York, London and Hong Kong are ready to go.
So, is this just a mere coincidence that the three places mentioned by W'Kabi were cities where the Sanctum Sanctorums were located? Or was there a hidden meaning later explained by the movie producers/writers.